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Can you be charged for someone else’s drugs or guns in your car?

On Behalf of | Sep 25, 2026 | criminal defense |

Finding drugs or a firearm in your car can turn an ordinary drive into a frightening encounter with police. If the item belongs to someone else, you may still worry that you could be blamed for it.

The police can ask who knew the item was there and who could control it. Understanding constructive possession may show why they could investigate several people in the car and which facts could affect a case.

When can something in a car count as your possession?

In South Dakota, prosecutors may charge you with possessing drugs or a firearm even if you never held or owned the item. The law refers to this theory as constructive possession. It generally depends on whether the evidence suggests you knew the item was there and had the ability to control it.

Your connection to the car may support that claim, but it does not automatically prove you knew about everything inside it. For example, police can question a car’s owner about a gun under the driver’s seat or ask a passenger about drugs in a bag beside them.

Investigators can consider where they found the item, who could reach it, what people said and other evidence. To prove possession, the state generally must establish that you knew about the item and had the ability to control it. Simply riding in the same car does not automatically mean you possessed it.

Potential consequences for drugs and firearms possession in South Dakota

The possible penalties depend on the substance, the alleged conduct and your record. South Dakota law defines controlled drugs and substances to include drugs listed in Schedules I through IV and certain altered substances absorbed into the body. Unauthorized possession of a Schedule I or II substance is generally a Class 5 felony; Schedule III or IV possession is generally a Class 6 felony.

The consequences may vary by charge and criminal history. They may include:

  • Drug possession: The felony class depends on the substance and charge. A conviction can bring prison time and fines.
  • Firearm possession after certain convictions: A person with a qualifying conviction may face a separate Class 6 felony charge for possessing or controlling a firearm. The law has exceptions, including one tied to when a person with a prior drug felony left custody or supervision.
  • Separate charges: Prosecutors may charge separate offenses in separate counts when the evidence supports them. If you receive multiple convictions, the court can order the sentences to run concurrently or consecutively.

A firearm’s presence in the car alone may not prove that you possessed or controlled it. The circumstances and any applicable restrictions often matter.

How you can respond to a charge

Keep records of who used the car, who had access to it and where police found the item. Avoid discussing the case publicly because your statements could become evidence.

Using those details, a criminal defense attorney can assess what prosecutors may be able to prove and explain how the law applies to your case. That guidance can help you make better decisions as the case proceeds.